Hesitation problem
#1
08-06-2007, 04:51 PM
Guest
Posts: n/a
Hesitation problem
Hello,
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
#2
08-06-2007, 09:03 PM
#3
08-07-2007, 09:55 AM
Member
RE: Hesitation problem
ORIGINAL: Artie Ziff
Hello,
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
Hello,
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
Took it back to the dealer,and twoof the coils had gone bad. They were replaced - No more issues!
Good luck !!
#5
08-07-2007, 03:42 PM
Guest
Posts: n/a
RE: Hesitation problem
It is still under warranty. Their best guess was timing sensor. They are just guessing at this point. There is only one other dealership near us and I may give them a chance. I am going to pull the MAF and clean it and clean the injectors and see if that helps. I hope that itis not throttle body.
#6
08-24-2007, 02:34 PM
#7
08-26-2007, 04:03 PM
Veteran Member
RE: Hesitation problem
ORIGINAL: tallblondeguy
Artie, not sure if this is the same thing you're dealing with, but my 2000 S Type 3.0 had major hesitation issues several weeks ago. Same scenario, no codes. I wasn't sure if I had a clogged fuel line, transmission issue, or something else. This continued for about 2 weeks until my ENGINE lite finallycame on. This is good news, because it also means a code should show.
Took it back to the dealer,and twoof the coils had gone bad. They were replaced - No more issues!
Good luck !!
ORIGINAL: Artie Ziff
Hello,
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
Hello,
I have a 2002 4.0 that is giving me some trouble. The car does not want to accelerate from slower speeds. It seems almost like the throttle body and the gas pedal have no idea what each other are doing. You can push the pedal allthe way to the floor and it just continues its current speed and RPM and then all of a sudden it will take off. Does not do it as much at highway speeds, seems more obvious at slower speeds. No codes. Jaguar has had itfor almost two weeks andagrees it is notright, but can not fix it because they don't know what to do. Most of the obvious stuff has been checked, filter, vaccum leaks, etc both by Jag and myself. I scan the car quite frequently just to see if it is storing any codes. I have my own fuel injection cleaning kit that run of the canister of cleaner, but have not used it on a returnless fuel system yet, needs to do a little research. I am hoping it is something easy and not a bad throttle body. Any help would be appreciated. Thank you.
Took it back to the dealer,and twoof the coils had gone bad. They were replaced - No more issues!
Good luck !!
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